Stealth model Pixel Canary ties GPT-6 Astra on Vercel's Next.js evals and is free on AI Gateway and Cline
Vercel Changelog (also Cline on X, vercel/next-evals-oss PR #128)·medium signal
stealth/pixel-canary passes 28 of 31 Next.js eval tasks (90.3%, pass@4), matching GPT-6 Astra on high effort. With Next.js docs supplied through AGENTS.md it passes 30 of 31 and ties the top leaderboard score. Vercel and Cline both offer it free for a limited time for web and mobile app work, with no zero data retention and prompts usable for training by an unnamed lab, so keep private code away from it.